rootbrowseIAC-23D2session 44. Future Space Transportation SystemsPapers1. Bringing Space Transportation in Europe to the Next Level2. Towards the next step: SpaceLiner 8 pre-definition3. Conceptual Study and Development Plan of Reusable SSTO to Realize Frequent Access to Space4. Development of Trajectory Optimization Tools for quick performance evaluation of reusable launch vehicle configurations5. CONCEPTS FOR LUNAR SPACE STATION FOR INTERPLANETARY MISSIONS7. study of ascent capabilities for a manned mission on mars8. An Analysis of the Point-to-Point Cargo Transportation System using Reusable Launch Vehicles9. IO a uniquely European Solution to the Superheavy Launch Problem10. A FULL MAGNETIC SAFE MODE FOR SPACE RIDER MISSION